Wi-Fi telephony is the latest, most cost effective, and clearest way of carrying voice data wirelessly. The great news is that it can be integrated seamlessly into the same infrastructures as currently used for computer and telephone data.The digital quality is far above current cellular technologies.

This book will be among the first to discuss Session Initiation Protocol (SIP), Quality of Service (QoS), and interoperability in connection with Wi-Fi telephony. Security challenges are also presented and solved along these malleable wireless boundaries. In short, this book provides all the information necessary for effective, reliable, crystal clear Wi-Fi telephony service and implementation.

At the present time, the wireless communications research community and industry are about to start discussions on standardization activities for the fourth generation (4G) of these systems. In the meantime, the research community has generated a number of promising solutions for significant improvements in system performance. Adaptive coding and modulation, iterative (turbo) decoding algorithms, space–time coding, multiple antennas and MIMO channels, multicarrier modulation, multiuser detection and ultra wideband radio are examples of enabling technologies for 4G.

The focus of the book is on the system elements that provide adaptability and reconfigurability, and discussion of how much these features can improve the system performance. At the same time, the book provides a solid overview of the conventional technologies, although this is not the focus of our discussion. The measure of performance is the reconfiguration efficiency defined as a ratio between the reconfiguration (signal to noise ratio) gain and the relative increase in complexity.

The content of this book is based on the results of the research community in the field of wireless communications across the globe, and a number of authors have been explicitly cited in the text. This by no means represents an exhaustive list of those whose work isbuilding up the enabling technology for 4G.

Wi-Fi telephony is the latest, most cost effective, and clearest way of carrying voice data wirelessly. The great news is that it can be integrated seamlessly into the same infrastructures as currently used for computer and telephone data.The digital quality is far above current cellular technologies.

This book will be among the first to discuss Session Initiation Protocol (SIP), Quality of Service (QoS), and interoperability in connection with Wi-Fi telephony. Security challenges are also presented and solved along these malleable wireless boundaries. In short, this book provides all the information necessary for effective, reliable, crystal clear Wi-Fi telephony service and implementation.

IT professionals are looking for a book that gives them more than just theory and generic security information. With the best-selling Hacking Exposed series already established as the leader in the marketplace, Hacking Exposed Wireless provides real, tactical wireless security implementation coverage by showing how to execute the attacks and implement the defenses. This is an invaluable resource for any IT professional who works with wireless technology.

• Demonstrates how attackers identify and exploit wireless network weaknesses
• Covers the spectrum of wireless technologies: WiFi/802.11, Bluetooth, IRDA, 3G Wireless, RFID,WiMAX, and more
• Includes new, previously unpublished attacks and their countermeasures

This is the first Wireless and Mobile Systems text written for Computer Science and Engineering students (as opposed to Electrical Engineering graduate students). The authors explain the general principles of how wireless systems work, how mobility is supported, what is the underlying infrastructure and what interactions are needed among different functional components. Appropriate for undergraduate or graduate courses, the chapter topics focus on qualitative descriptions and the realistic explanations of relationships between wireless systems and performance parameters. Rather than offering a thorough history behind the development of wireless technologies or an exhaustive list of work being carried out, the authors help EE and CSE students learn about this exciting technology and understand how a cell phone starts working as soon as they get out of an airplane.

The painless way to learn wireless LAN design and development, this first guide in McGraw-Hill's self-tutoring Build Your Own series gives professionals a simple way to master new skills. With this guide, even non-techies can build simple wireless LANs with off-the-shelf products!

-Complete deployment plan for a simple wireless network, and the projects to build them

-Build projects with just a WaveLAN card and an ethernet connection

-Shows how to tune networks with the latest range enhancement and interference minimization techniques

This book aims to present modern wireless communication concepts in a coherent and unified manner and to illustrate the concepts in the broader context of the wireless systems on which they have been applied.

This book is written as a textbook for a first-year graduate course in wireless communication. The expected background is solid undergraduate/beginning graduate courses in signals and systems, probability and digital communication. This background is supplemented by the two appendices in the book. Appendix A summarizes some basic facts in vector detection and estimation in Gaussian noise which are used repeatedly throughout the book. Appendix B covers the underlying information theory behind the channel capacity results used in this book. Even though information theory has played a significant role in many of the recent developments in wireless communication, in the main text we only introduce capacity results in a heuristic manner and use them mainly to motivate communication concepts and techniques. No background in information theory is assumed. The appendix is intended for the reader who wants to have a more in-depth and unified understanding of the capacity results.

This all-inclusive, expertly structured contributed volume will serve as an indispensable guide for professionals or researchers working in areas like networking, communications, data compression, multimedia processing, streaming architectures, and computer graphics. Beginning with a concise overview of the fundamental principles and challenges of multimedia communication and networking, this book then branches off organically to tackle compression and networking next before moving on to systems, wireless multimedia and more advanced topics.

The Compression section advises on the best means and methodology to ensure multimedia signal (images, text, audio and data) integrity for transmissions on wireless and wired systems. The Networking section addresses channel protection and performance. In the Systems section the focus is on streaming media on demand, live broadcast and video and voice's role in real-time communication. Wireless multimedia transmission and Quality of Service issues are discussed in the Wireless Multimedia section. An Advanced Topics section concludes the book with an assortment of topics including Peer-to-Peer multimedia communication and multipath networks.

* Up-to-date coverage of existing standards for multimedia networking
* Synergistic tutorial approach reinforces knowledge gained in previous chapters
* Balanced treatment of audio and video with coverage of end-to-end systems

This first-of-its-kind book, from expert authors actively contributing to the evolution of Bluetooth specifications, provides an overview and detailed descriptions of all the security functions and features of this standard’s latest core release. After categorizing all the security issues involved in ad hoc networking, this hands-on volume shows you how to design a highly secure Bluetooth system and implement security enhancements. The book also helps you fully understand the main security risks involved with introducing Bluetooth-based communications in your organization.

This cutting-edge resource examines all known attacks on Bluetooth security mechanisms and their implementations, demonstrating how some of these known weaknesses can be avoided with appropriate defensive measures. The book presents concrete examples of how to design security solutions for some Bluetooth applications and products built on these applications. You find real-world case studies including technical algorithms, mechanisms and protocols, and security architectures. These architectures offer valuable guidelines for use in building Bluetooth and non-Bluetooth-specific security mechanisms.

A comprehensive guide to analyzing the business rationale for WLANs

• Evaluate the business rationale behind the deployment of WLANs, including return on investment (ROI), net present value, payback period, and total cost of ownership

• Develop a robust execution plan to deploy and operate the WLAN

• Understand the high-level technical issues of deploying and managing your WLAN from a business decision-maker's perspective

• Maximize the positive impact of supplementary and complementary services such as voice, video, and guest WLAN access

• Identify potential security threats and develop strategies to mitigate attacks

• Learn methodological and technical best practices from WLAN deployment case studies featuring real-world, enterprise-class businesses and institutions

• Gather information easily by referring to quick reference sheets and appendixes covering an antenna overview, a high-level sample project plan, checklists, and flowcharts